Sometimes when I join a server, on one device it shows me in one location, but on my device im in another location. I do the same things, just in two different locations.

When i tried to server with a samsung galaxy tab 3, on the tablet i was in a village well placing down obsidian, while on my screen I was placing obsidian on another area. on my screen it showed air bubbles on my screen even though i was on land. On both platforms the obsidian i was placing down was interactable with.